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Not quite sure what the OP is asking for.
However if you just want to ADJUST the video while playing say a movie standard software like VLC has a Video effects section -- here you can adjust such things like Sharpness, Gamma, Brightness, Contrast, and even things like Hue and Saturation.

VLC as a player has almost anything you need. The problem usually is you have to find it !!!.

Screen Dimming Software?

Screen dimming makes screen black out.To be more specific, when I dim my screen for a period of time it dims, but then a part of the screen get even darker. When I go to brighten the screen again, that same part stays dim. Now when the screen is at it's brightest 50% of the screen is dimmed and the other side is at its brightest. Im...

General Discussion

Screen keeps dimming to black when I open or close programsI've had an issue for 3-6 months that I assumed was an o/s bug from an update that would get fixed in a future update - but it still seems to be here.
It's sporadic - but what happens is that my monitor will dim to black and then come back after a few seconds. Typically it happens when I close...

Dimming laptop screenI have an old HP laptop - actually says on the back Compaq nz7010 & Part number : PQ803PA#ABG that I want to give to a friends Mum who is going to have to stay still for long periods after an operation in order for her to have something other that the TV to occupy her.
Now it is loaded with XP...

Hardware & Devices

LED Dimming and BrighteningAlright everyone, I can find no good reason for why this is occurring for me.
As some of you know, I am trying to make a fan speed controller. So far, I am successful, save for the LEDs.
I am using a 25Ohm potentiometer to control the fan speed, and that part works beautifully. The issue is...